HDV-DVCProHD Worlkflow

[Kevin Wild]

Workflow, not “Worlkflow.” Sorry.

KW

[David Battistella]

Kevin,

You can start with my HDV article as a primer.

https://www.creativecow.net/cgi-bin/page_wrapper.cgi?forumid=83&page=/articles/battistella_david/recapturing_HDV/index.html

If you use an andromedia Lanc converter and the sony deck it would be possible to capture the HDV to just about any codec you want if you use the component out of the deck and convert it to SDI with the AJA component to HD-SDI converter to get through the Kona into any codec you want with reliable TC recapture accuracy.

https://www.aja.com/hd10a.htm

David

[Kevin Wild]

Actually, I’ve read your article before…nice work and thanks.

I’m wondering why you think the AJA component to HD-SDI is necessary. Is there a downside to coming out component from the M10U and going straight into the Kona LH and getting timecode via a Lanc-RS422 converter?

What about adding a Convergent Design HD Connect LE? (https://convergent-design.com/CD_Products_HDConnectLE.htm) Is this also unnecessary or would it improve quality by doing an in-box HDV-SDI conversion, rather than a component-analog solution?

Thanks. The HD fog is clearing…but it’s still pretty thick. 🙂

Kevin

[David Battistella]

The HD-SDI would be nessesary for the KONA 2 as it does not accept HD analog inputs.

So I would go with the Lanc and the LH, then you should be good to go.

David

[Kevin Wild]

Actually, I’m getting the LH that does have analog inputs. Does anyone have opinions on which workflow is better quality for converting the HDV to DVCPro HD:

-Going out of the HDV deck via component and into the component inputs on Kona LH

OR

-Using a Convergent Design box that internally converts the HDV stream to Uncompressed, going out SDI into the Kona LH via SDI.

Obviously, the first solution is cheaper, but I don’t yet have an idea on the quality difference between these 2 approaches.

Kevin

[David Battistella]

Kevin,

If you go with the convergent designs box is it a firewire interface? The reason I ask is because the box would be using up most of the MAC’s firewire resources. If you were attaching a deck to that same firewire bus you might have some choking issues with the stream you are pushing through the firewire bus.

The AJA component converter would eliminate the need for adding additional PCI cards, or using up the firewire bus bandwidth. It will convert any component signal to HD-SDI, and would be cheaper than the Convergent design box. Also, the HD version of the Convergent Design box is not shipping yet, which means it is at the prototype stage. This is a relatively new company on the scene and I have not had any experience with their products so I can not really say. From what I read on their site it appears the product can do a lot of things and seems to be well designed.

It’s about 2000. I think that with the HD connect LE they are sending the RP-188 TC embedded in the HD-SDI stream. Now there is a product I would like to test because it takes in HDV converts it to HD-SDI and claims to be completely TC accurate.

I still would have a few questions, will it convert all HDV formats, SONY, JVC, CANNON (as they all have their slight differences AND, it does not seem to support 24P, so what do you do if you ahve the new JVC footage shot at 720_24P.

Lots of questions. I am sure Gary Adcock will jump in here, or at least I hope he does.

David

[Sandust]

Kevin,

I did a lot of testing with my Sony FX1s and capturing native HDV vs component to HD-SDI conversion and capture to 10bit uncompressed HD. I used Decklink products for the component to HD-SDI, but the AJA stuff should work just fine too.

What I noticed was the 10bit uncompressed footage captured from component was a little softer than the native HDV footage. The HDV actually looked a little better.

I would go with the Convergent box to convert HDV from firewire to HD-SDI. The footage I have seen captured that way looked great, but I haven’t done any real testing to very it is as good or better than the native HDV.

As for editing HDV, I use FCP and have shot close to 1000 hours of HDV that we have used to cut TV shows and movies and HDV was very easy to work with. The only problem we have found is FCP HDV footage in After Effects doesn’t look at nice as it does in Apple products. It is a little blocky in AE, but you have to zoom in 400% to really see it.

Mahalo,
Dusty

Dual 2.5Ghz G5 w/ 2.5GB ram, Decklink HD, Decklink Multibridge, MOTU 896HD
JVC DV5000, 2 Sony HDR-FX1, JVC BR-DV3000U, JVC 19″ HD monitor